Mower.



No. eeo,|53. Patented oct. 23, |900. o. L Envm.

MDWER. (Apputiqnmea me. 23, 1897.) (No Model.)

nu: wams PETERS so. vnoauwm WASHINGTON. n. c.

p n x NiTED STATES PATENT OFFIC.

OSCAR L. ERVIN, OF PLANO, ILLINOIS, ASSIGNOROF TWO-THIRDS TO E. J. COOKAND D. COOK, OF SAME PLACE.

Mowlili.

SPECIFICATION forming part of 'Letters Patent No. 666,153, dai-.eaoctober 23, 190e.

Application filed December 23, 1897. Serial No. 663,125. (No model.)

To all whom it may concern:

Be it known that I, OSCAR L. ERVIN, residing at Plano, in the county ofKendall and State of Illinois, have invented a new and useful Mower,ofwhich the following is a specification.

This invention relates generally to improvementsiu mowers, andparticularly to the class designated as rotary mowers.

One object of the invention is to provide a mower which is simple inconstruction and eective in operation and in'which the rotary cuttersmay be actuated at the expenditure of a smaller amount of power thanthose now in general use.

A further object is to so construct the cutters that they may be readilyremoved when desired for the purpose of sharpening or replacing the sameby new ones.

In order to enable others skilled in the art to which my invention mostnearly appertains to make and use the same, I will now proceed todescribe its construction and operation, having reference to theaccompanying draw-A z 5 ings, forming part of this specification, in

which- Figure l is a perspective View of a lingerbar, showing myimprovement. Fig. 2 is a top plan view with the shield removed. Fig.

3o 3 is a longitudinal sectional View on the line 3 3 of Fig. 2. Fig. 4is a transverse section on the line 4t 4c of Fig. 2. Fig. 5 is aperspective view of one of the rotary cutters. Fig. 6 is a transversesection on the line 6 6 of Fig. 2.

In the drawings I have illustrated only the finger-bar with my inventionapplied thereto and have omitted the mower-frame and the intermediateconnections between said frame 4o and the cutters and finger-bar, as thesame may be of any desired construction and do not form any part of myinvention, which relates to the rotary cutters.

Referring to the drawings, A is the {ingerbar, which is supported uponthe runners B and BQ and D are the ngers, secured to said bar or formedintegral therewith, as in the ordinary construction.

O is a sheet-metal shield secured upon the 5o upper surface of thefinger-bar and curved over the cutters, so as to protect the operativeparts from the falling grass or grain.v Projeeting upwardly from thefinger-bar at points between the fingers are the spindles E, which areheaded on their lower ends and screwthreaded at their upper ends toreceive the nuts F.

G are sprocket -wheels rotatable upon the spindles and having securedthereto upon their under surfaces the rotary disks. I-I, having aplurality of double-edged cuttingblades H projecting radially therefrom.The sprocket wheels I upon the spindles at the respective ends of theiinger-bar are larger in diameter than the intermediate sprockets, saidsprocket at the inner end of the bar being secured upon its spindle,which is rotatable in the iinger-bar and projects through the shield,having upon its end a gear-wheel J, by means of which it is rotated byany desired connection with the motive power of the mowing machine. Achain K passes around the sprockets at the ends of the fingerbar andengages alternately upon the rear and forward portions of theperipheries of each of the sprocketwheels G, so that said sprockets areeach rotated in a direction opposite to that of the adjacent one. Therotary cutters being held in position upon the spindles by the nuts F,they are readily removed for sharpening or any other purpose.

It will be noticed that the rotary cutters are so placed upon thefinger-bar as to mesh with each other, and thus the grain or grass ismore effectually cut.

Although I have described my invention as applicable to a large mower,yet it will be Vunderstood that the same can be readily applied to alawn-mower and be equally effective in operation.

While I have illustrated and described the IOO tion, with a bar, of arunner secured to each -end thereof, fingers secured to theinterrnediateportion of the under side of the bar, bolts through the bar, onebetweeneach linger, one of whioh, at one end is longer than the others, theheads of the bolts being upon the nnder "side of the bar, a rotary disk`upon'each boit: above the bar provided with a plurality ofradially-arranged double-edged cutting-blades, the blades of thedifferent disks intermeshing with each other, a sprocket-Wheel uponeach? disk, the ones at the ends being larger than the others, a chainon the Wheels in position to rotate the alternate Wlieelsinl oppositedireotions, alourved shield secured to the bar atits rear edge to the,rear of and eitending for`4 Wardly over the disks; one end of which isper foratd for the passage of the long bolt, and a bevel-wheel en top`of said bolt above the shie1d,substantia1ly as described.

OSCAR L. ERVIN. Witnesses:

L. E. ERVIN, E. W. FAXON.

